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Renesas R5F64178DFB#UB
- Part No.:
- R5F64178DFB#UB
- Manufacturer:
- Renesas
- Category:
- Microcontrollers
- Package:
- 100-LQFP
- Datasheet:
-
R5F64178DFB#UB.pdf
- Description:
- IC MCU 16/32BIT 768KB 100LFQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,240
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Product details
Overview
R5F64178DFB#UB from Renesas Electronics is a 64 MHz, 768 KB flash, 63 KB RAM, 144-pin LQFP microcontroller in the R32C/117 Group, featuring a 32-bit CISC CPU core with IEEE-754 single-precision FPU, 9-channel UART, CAN 2.0B module (32 mailboxes), and 34-channel 10-bit A/D converter. It targets automotive audio and industrial control systems requiring deterministic real-time processing and mixed-signal integration.
For engineers reviewing the R5F64178DFB#UB datasheet, R5F64178DFB#UB pinout, R5F64178DFB#UB application, or R5F64178DFB#UB equivalent, this page delivers verified specifications, package mapping, functional alternatives, and design-critical timing/peripheral details directly applicable to production-grade embedded firmware and hardware layout.
Technical Context
The R5F64178DFB#UB implements the R32C/100 Series CPU core with 108 basic instructions, 15.625 ns minimum instruction cycle at 64 MHz, and integrated multiplier/MAC/FPU for deterministic signal processing. Its memory architecture supports 4 GB address space with up to 64 MB user-accessible external bus expansion using selectable 8/16/32-bit data width and wait-state insertion.
Peripheral subsystems include DMAC (4 channels, 57 request sources), intelligent I/O (16-bit input capture ×16, output compare ×24), and dual serial interface capability per UART channel - supporting I²C-bus (UART0–UART6), asynchronous/synchronous modes, and optional IEBus - all managed under a unified interrupt vector table of 261 entries and 7 priority levels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | R32C/100 Series 32-bit CISC with IEEE-754 single-precision FPU and 32-bit barrel shifter |
| Max Operating Frequency | 64 MHz - enables 15.625 ns minimum instruction execution time for hard real-time control loops |
| Memory | 768 KB flash + 8 KB ×2 data flash; 63 KB RAM - sufficient for complex automotive audio stacks with OTA update partitioning |
| Analog Peripherals | 34-channel 10-bit A/D converter with sample-and-hold; 2-channel 8-bit D/A - supports multi-sensor feedback and analog actuator control |
| Serial Interfaces | 9 UART channels (UART0–UART8), 1 multi-master I²C-bus, 1 CAN 2.0B module (32 mailboxes) - enables concurrent vehicle network bridging |
| Package | 144-pin plastic LQFP (PLQP0144KA-A) - standard surface-mount footprint compatible with industrial reflow profiles |
| Operating Temperature | −40°C to +85°C (D version) - qualified for under-hood automotive and factory-floor industrial environments |
Pinout & Package
144-pin plastic molded LQFP (PLQP0144KA-A), 20 mm × 20 mm body, 0.5 mm pitch, exposed thermal pad (non-electrical).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P8_2 | CAN0OUT | Primary CAN high-speed differential output driver for ISO 11898-1 compliant bus transmission |
| P8_3 | CAN0IN / CAN0WU | CAN receiver input with wake-up capability - detects dominant/recessive states and initiates low-power mode exit |
| P7_0 | TA0OUT / TXD2 / SDA2 / SRXD2 / IIO1_6 / OUTC2_0 / ISTXD2 / IEOUT / MSDA | Multi-function pin supporting timer output, UART2 transmit, I²C2 data, intelligent I/O waveform generation, and master serial data |
| P10_0 to P10_7 | AN_0 to AN_7 / KI0 to KI3 | 8-channel analog input with key interrupt capability - enables direct sensor acquisition and front-panel button scanning |
| P0_0 to P0_7 | AN0_0 to AN0_7 / D0 to D7 | 8-channel analog input with parallel digital port mapping - supports legacy ADC interface migration and simultaneous sampling |
Key Features
| Feature | Design Value |
|---|---|
| Three-phase motor control timer | Integrated hardware timer (using TA1, TA2, TA4, TB2) with 8-bit programmable dead-time insertion - eliminates external gate-driver timing logic |
| CRC-CCITT calculator | Dedicated hardware engine computing X16 + X12 + X5 + 1 polynomial - accelerates communication frame integrity checks without CPU overhead |
| Intelligent I/O subsystem | 16-bit input capture ×16 and output compare ×24 - enables precise encoder position tracking and PWM waveform synthesis independent of CPU load |
| External bus interface | 4 chip-select outputs with wait-state insertion and 8/16/32-bit data width selection - supports direct connection to NOR flash, SRAM, and FPGA peripherals |
| On-chip debug & flash programming | Fully integrated debug circuitry with flash erase/program capability via single-wire interface - enables field firmware updates without external programmers |
Applications
| Automotive Audio Head Unit | Industrial PLC I/O Module |
|---|---|
Use Scenario: Central controller managing DSP audio processing, Bluetooth streaming, USB host, and CAN-based vehicle network communication. IC Role / Device Role / Timing Role: Main application MCU executing real-time audio codecs, handling CAN message routing, and synchronizing peripheral DMA transfers. Use Value: Integrated CAN 2.0B and 9 UARTs eliminate external transceivers and bridge ICs; 64 MHz CPU ensures sub-millisecond audio buffer latency. | Use Scenario: Modular I/O base unit acquiring analog sensor data, driving relay outputs, and communicating via Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Deterministic real-time controller managing 34-channel A/D sampling, 2-channel D/A output, and serial protocol stack execution. Use Value: On-chip 10-bit A/D with sample-and-hold and intelligent I/O timers enable synchronized multi-channel acquisition without software intervention. |
| Office Equipment Motor Control | Factory Automation CAN Gateway |
Use Scenario: Embedded controller in laser printer engine managing stepper motor sequencing, thermal head regulation, and paper path sensors. IC Role / Device Role / Timing Role: Precision motion controller using three-phase motor timer and 16-bit PWM outputs to drive H-bridge drivers. Use Value: Hardware dead-time insertion prevents shoot-through in motor gate drivers; integrated FPU accelerates PID loop calculations. | Use Scenario: Protocol translator between CANopen devices on shop floor machinery and Ethernet-based SCADA systems. IC Role / Device Role / Timing Role: Dual-interface gateway processor running CAN message filtering, buffering, and TCP/IP offload tasks. Use Value: 32 CAN mailboxes support concurrent reception/transmission of multiple PDOs; external bus interface connects to Ethernet MAC controller. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| R5F64178PFB#UB | Same 768 KB flash/63 KB RAM/144-pin LQFP, but rated −40°C to +85°C (P version) with enhanced ESD tolerance | Preferred for extended-temperature industrial deployments where latch-up immunity exceeds D-version requirements | Select when operating ambient exceeds 85°C case temperature or ESD stress exceeds 4 kV HBM |
| R5F64177DFD#AA | 640 KB flash/48 KB RAM/144-pin LQFP, identical peripheral set and speed grade, different package marking code | Suitable for cost-optimized designs where 128 KB less flash suffices for firmware footprint | Choose when application firmware fits within 640 KB and BOM cost reduction is prioritized over future scalability |
Compared with R5F64178DFB#UB, R5F64178PFB#UB offers identical functionality with higher reliability margins for harsh environments, while R5F64177DFD#AA reduces memory capacity to lower unit cost - both retain full pin and code compatibility for drop-in substitution in validated designs.
Availability
R5F64178DFB#UB is available at Aetrix Electronics and suitable for automotive audio head units, industrial PLC I/O modules, office equipment motor controllers, and factory automation CAN gateways requiring stable component supply across multi-year production cycles.
Supply support for R5F64178DFB#UB includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Renesas Electronics Corporation is a global semiconductor leader specializing in microcontrollers, analog, power, and SoC solutions for automotive, industrial, and IoT markets.
The R32C/117 Group belongs to the high-end R32C/100 Series MCU line, designed specifically for deterministic real-time control in automotive infotainment, industrial automation, and precision motor drive applications.
FAQ
What is the maximum operating frequency and supply voltage range for the R5F64178DFB#UB?
The R5F64178DFB#UB operates at a maximum frequency of 64 MHz with a supply voltage range of VCC = 3.0 V to 5.5 V. This allows direct interfacing with 3.3 V and 5 V logic systems without level-shifting, and its 15.625 ns minimum instruction execution time supports tight real-time deadlines in automotive and industrial control loops. The device maintains full specification compliance across the entire voltage and temperature range.
Does the R5F64178DFB#UB include on-chip debug and flash programming capability?
Yes, the R5F64178DFB#UB integrates on-chip debug circuitry and supports on-board flash programming via a single-wire interface. This enables in-system firmware updates, real-time debugging, and boundary-scan testing without requiring external emulators or programming adapters. The R5F64178DFB#UB's debug infrastructure is fully compliant with Renesas' standard toolchain, including E2 studio and CS+ IDE.
How many CAN mailboxes does the R5F64178DFB#UB support, and what CAN standard is implemented?
The R5F64178DFB#UB supports 32 dedicated CAN mailboxes and implements CAN 2.0B protocol compliant with ISO 11898-1. Each mailbox can be independently configured for transmit or receive operation with programmable identifier masking and priority arbitration, enabling robust handling of mixed-standard CAN traffic in automotive networks. The R5F64178DFB#UB's CAN module operates at up to 1 Mbps with built-in error counters and bus-off recovery.
What analog-to-digital converter resolution and channel count does the R5F64178DFB#UB provide?
The R5F64178DFB#UB integrates a 10-bit successive-approximation A/D converter with 34 input channels - 8 dedicated analog pins (P10_0–P10_7), 8 additional analog inputs (P0_0–P0_7), and 18 more accessible via port multiplexing (e.g., AN2_x, AN15_x). All channels feature integrated sample-and-hold circuitry, enabling simultaneous sampling across multiple channels without external components. The R5F64178DFB#UB's ADC supports configurable conversion triggers including timer, external pin, and software start.
Is the R5F64178DFB#UB pin-compatible with other members of the R32C/117 Group?
Yes, the R5F64178DFB#UB is pin-compatible with all 144-pin LQFP variants in the R32C/117 Group, including R5F64175DFD#AA, R5F64176DFD#AA, and R5F64177DFD#AA. Identical pin assignments, electrical characteristics, and peripheral mappings allow direct PCB reuse across memory and speed variants. The R5F64178DFB#UB shares the PLQP0144KA-A package footprint and thermal pad configuration, ensuring mechanical and layout interchangeability.
R5F64178DFB#UB Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Renesas
- Package/Case:
- 100-LQFP
- Series:
- M16C/R32C/100/117
- Packaging:
- Tray
- Product Status:
- Obsolete
- Programmable:
- Not Verified
- Core Processor:
- R32C/100
- Core Size:
- 16/32-Bit
- Speed:
- 50MHz
- Connectivity:
- CANbus, EBI/EMI, I2C, IEBus, UART/USART
- Peripherals:
- DMA, LVD, PWM, WDT
- Number of I/O:
- 84
- Program Memory Size:
- 768KB (768K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- 8K x 8
- RAM Size:
- 63K x 8
- Voltage - Supply (Vcc/Vdd):
- 3V ~ 5.5V
- Data Converters:
- A/D 26x10b; D/A 2x8b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
R5F64178DFB#UB FAQ
1.How can I place an order for R5F64178DFB#UB through Aetrix?
Please submit a Request for Quotation (RFQ) for R5F64178DFB#UB on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for R5F64178DFB#UB reliable?
The price and inventory of R5F64178DFB#UB are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for R5F64178DFB#UB is usually 5 days.
3.What payment methods are accepted for R5F64178DFB#UB?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for R5F64178DFB#UB transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for R5F64178DFB#UB?
R5F64178DFB#UB orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your R5F64178DFB#UB order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for R5F64178DFB#UB?
For technical support, including R5F64178DFB#UB datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your R5F64178DFB#UB requirements.
6.How does Aetrix verify that R5F64178DFB#UB is sourced from the original manufacturer or authorized distributors?
All R5F64178DFB#UB products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that R5F64178DFB#UB meets industry standards.
7.What is the process for return or replacement of R5F64178DFB#UB?
All R5F64178DFB#UB units undergo pre-shipment inspection (PSI). If there is an issue with R5F64178DFB#UB, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The R5F64178DFB#UB part is unused and in its original packaging.
Return procedure for R5F64178DFB#UB:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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